@dmertz ‘s answer seems to mainly refer to IRS forms. If you got a notice from Kansas but not the IRS, maybe the transaction was reported correctly to the IRS but not correctly to Kansas. You would need to find somebody who is an expert in Kansas state tax returns. Possibly TurboTax customer support could help, they do have state specialists available, but I don’t know if they handle old issues like this.
(If TurboTax prepared the forms incorrectly, and you owe taxes and penalties as a result, the TurboTax guarantee is supposed to cover the penalties. However, if TurboTax prepared the form incorrectly, but you won’t owe the tax after correcting the forms, then the TurboTax guarantee doesn’t apply. So I’m not sure where to tell you to get assistance.)
